The Arizona Cardinals announced a few roster moves on Tuesday, as they had to place another two players on injured reserve. In addition to defensive tackle Robert Nkemdiche, who needs knee surgery, something coach Steve Wilks announced on Monday, recently signed linebacker Thurston Armbrister was also placed on injured reserve. He had a hamstring injury on Sunday.

That mow makes 15 players currently on injured reserve.

To replace them on the roster, Arizona signed a pair of players. They signed defensive tackle Vincent Valentine off the Seattle Seahawks practice squad and also added linebacker Jonathan Anderson.

Valentine returns to the Cardinals. He spent time on the practice squad earlier this season and will get immediate playing time as he is one of only three defensive tackles on the roster.

He entered the league with the Patriots as a third-round selection (96th overall) in the 2016 NFL Draft out of Nebraska. The 24-year old Valentine played in 13 games (two starts) and had 19 tackles and a sack as a rookie with the Patriots before missing the majority of last season on injured reserve.

Having spent time with the Cardinals already, he has familiarity with the defensive system and will also bring with him some knowledge of the Seahawks, whom the Cardinals play to close the season.

Anderson (6-1, 237) played the past three seasons with Chicago and appeared in 31 games (three starts), collecting 47 tackles (35 solo), one interception, five passes defensed and 14 special teams tackles. He entered the league with the Bears as an undrafted rookie free agent in 2015 out of TCU and played in 11 games (three starts) as a rookie. The 27-year old Anderson played 12 games last season for Chicago. He was released from Chicago’s injured reserve list on September 25.